That's an environmental factor, though, specifically a function of our modern life style.
We had our first child at ~30, so we track this trend, too. However, I sometimes think, what if we gave in to the biological trend and[0] had kids at 18-20? If that were the common trend, then... by the time i got 36, my kids would be on their way to starting their own families. I.e. my child-rearing day would've been over, right here, today. As it is, I'm about to turn 37, and am looking forward to some 15 more years of parenting.
No, I really am looking forward to this. But the point is, the life after parenting doesn't sound so appealing anymore, not when it starts at 50 instead of 36.
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[0] - Subject to the typical rules about age of adulthood, to not overcomplicate this.
> the life after parenting doesn't sound so appealing anymore, not when it starts at 50 instead of 36.
Even if you have kids at 18 you won’t be done with parenting at 36. Maybe they leave the home, maybe not, you will still have to do a lot of parenting for a while more. You’ll be well in your 40s before you can even think “I’m finally mostly done”.
At that age it depends on each person what they want to do with the life. A lot of my friends who had kids really early started focusing on career later in life. Exactly what they “missed”. Those who focused on career and travel when young, focused on kids later in life. I haven’t heard anyone really regretting the choice beyond “my back can’t really take it anymore”[0] because you can never know what you’re missing. You’ll never know how your life would have been otherwise and what you would have liked more or less.
[0] Me, after starting parenthood in my 40s and being lazy so my back isn’t what it could be.
We had our first child at ~30, so we track this trend, too. However, I sometimes think, what if we gave in to the biological trend and[0] had kids at 18-20? If that were the common trend, then... by the time i got 36, my kids would be on their way to starting their own families. I.e. my child-rearing day would've been over, right here, today. As it is, I'm about to turn 37, and am looking forward to some 15 more years of parenting.
No, I really am looking forward to this. But the point is, the life after parenting doesn't sound so appealing anymore, not when it starts at 50 instead of 36.
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[0] - Subject to the typical rules about age of adulthood, to not overcomplicate this.